# Questions tagged [matlab]

MATLAB is a commercial numerical computer algebra system

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### How to find frequency of a signal in matlab simulink

I have to find the frequency of the output signal from the inverter at AC+ port line as shown in the figure, But there is no direct simulink tool to measure the frequency directly.
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### BPSK demodulation on scilab

I have a csv file which contains the time and magnitude of the BPSK modulated waveform. I now want to demodulate this. Its bitrate is fc/128 (~106 kbit/s) and the carrier frequency is fc/16 (~847 kHz)....
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### Confused about the method of plotting complex signal in matlab

I am trying to solve the Question No. 2-c-iii. of the following problem: I'm a beginner to Matlab and signal processing & I'm having problem plotting this kind of complex signal. I've only dealt ...
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1 vote
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### Output of block diagram in Z-Domain ob block diagram

I want to calculate Y(Z)[Z-Domain] for the given system with matlab. See picture of the block diagram I have tried to solve it with matlab. I have written the following matlab code. ...
100 views

### Reason for frequency steps shown in Simulink FFT analysis tool

While using the FFT in Simulink tool, I have observed that if more number of cycles are selected then frequency steps in which harmonics percentage is shown is also divided accordingly. For example: ...
1 vote
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### Confusion calculating steady state error in MATLAB?

I am trying to use MATLAB to calculate steady state error I have found a weblink that gives code for finding steady state error but when i use that code i get value of steady error to be greater than ...
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103 views

### How to plot graph of perpendicularly polarized uniform plane wave is incident obliquely on a dielectric to conductor boundary using Matlab

I am writing the code for the equation which is attached below ( image of equation). I have written the code but getting errors. I want to plot the graph of E and H as underlined in the image. In the ...
61 views

### C Caller Block in Simulink does not show port specification?

so I am following the steps to create a C Call block function in Simulink as in the video linked here: C Caller Block - Integrate your C code into Simulink Models Here is the source code and header ...
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### FMCW radar sensor for vital sign signal processing

In order to get started with radar signal processing in MATLAB, I want to capture the heart frequency and respiration of a person with a FMCW radar. I only want to do post signal processing in MATLAB, ...
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### How to convert non-standard sample range to standard

I'm working on a project to record sound from a Raspberry Pi. I have ADC values raning from 0 to 4095. I can convert it to an audio file and hear my voice. This is my algorithm for getting sample ...
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